Remote user vpn

I have site to site vpn with branches and I would like the user remote vpn can routed through the vpn tunnel as well .for example the remote user in branch A can be use the resources in branch B via site2site tunnel .

Correct me if I'm wrong : you have site-to-vite VPN community on the one hand, and Endpoint RemoteAccesss VPN users on the other : right ? And your Endpoint RemoteAccess Gateways are part of the site-to-site community ?

If so, if the Office Mode IP plan is included into your 'local' encryption domain : all should work.